If you want the opposite of the thread you linked, spend a night on the square in Canton and a night at the Cross St./Light St. bars in Federal Hill. Maybe throw in some time on the Avenue in Hampden as well or down in Fell's for some live music.

If you don't have cars it might be expensive or annoying to get to Hampden. Otherwise I'd assume you're staying downtown.

For extra measure, eat your way through Lexington Market(Park's Fried Chicken livers) and Cross St. Market(Bruce Lee's wings). You can get 32oz beers in Cross St. Market too.